Gas-heater



L. GINO-MARS.

GAS HEATER.

APPLICATION FILED AUG.I0, 1920.

Patented Oct. 4, 1921.

' UNITED STATES.

PATENT OFFICE.

GAS-HEATER.

Specification of Letters Patent.

Patented Oct. 4, 1921 application filed August 10, 1920.v Serial No. 402,717.

To all whom it may concern:

Be it known that I, LEGENDRE CIN -MARs, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented new and useful Improvements in Gas-Heaters, of which the following is a specification.

This invention relates to improvements in gas heaters of the radiator type which are constructed so as to simulate in appearance the ordinary hot water or steam radiator.

The primary object of this invention is to provide a gas heater of the above-noted type which will be exceptionally simple and inexpensive as to construction, which will provide maximum heat at a relatively low fuel consumption, which will eliminate objectionable odors and overcome the hazard of extinguishing the burner flame in case of back draft or a sluggish fine, and allow immediate circulation.

The invention further consists in a novel construction relative arrangement of parts whereby the heater may be more easily and cheaply manufactured, the construction embodying relatively few parts and being of such arrangement-that, possibility of collection of condensation in the heater and loss of heat through the stack are reduced to a minimum.

The invention possesses other. advantages and features some of which, with the foregoing will be set forth at length in the following description wherein I shall outline in full that form of the invention which I have selected for illustration in the drawings accompanying and forming a part of the present specification. In said drawings, I have shown one form of the construction of my invention, but it is to be understood that I do not limit myself to such form, since the invention as expressed in the claims may be embodied in a plurality of forms.

Referring to the drawing:

Figure 1 is a front elevation partly broken away and in section of the gas heater of this invention.

Fig. 2 is a vertical sectional view taken on the line 22 of Fig. 1.

Fig. 3 is a horizontal view taken on the line 33 of Fig. 2.

In the present embodiment of the invention, the heater comprises a plurality of radiator sections joined to one another so as to provide a compact heater structure such as illustrated in the drawings and which will be more particularly described hereinafter. The end sections 4 of the radiator have supporting legs 5 attached thereto so as to support the structure from the floor. Each radiator section comprises an ascendmg flue and a descending flue 7, said flues commumcatlng with one another only at the upper ends of the section. The construct1on of the section preferably embodies the employment of two similar elongated concavo-convex halves 8 which at their peripheries are lap-seamed together as at 9. Centrally of these sections, and vertically, the material of each half is pressed inwardly so that each half contacts with the other and provides a partition 10. The contacting portions are firmly held together by suitable tie rods 11 held in place by nuts 12, said rods being inserted through the pressed-in portion 10. By this construction, It may employ light sheet metal and by rea son of the thinness of the metal provide giving off heat very rapidly and to a maximum extent.

In assembling the sections, the tie rods 11 constitute the means for holding the sections together, with spacers to hold the sections apart. The lower ends of the ascending flues 6 of the sections are provided with elongated openings 13 which are formed in outwardly extending bosses 14 on the opposite faces of the sections and these openings provide means of communication be tween the lower ends of the ascending flues of said sections, forming a burner passage 15 extending horizontally through the lower ends of the ascending flues. A burner pipe 16 is inserted from one side of the radiator into the passage 15 and is provided with burner openings 17 in its upper face, said openings being arranged to produce a flame within the lower end of each ascending flue. Adjacent the lower end of the descending flues in opposed sides thereof are openings 18 communicating with one another whereby a horizontal communicating passage 19 is provided at the lower ends of said descending flues. It will thus be seen that the sections communicate with one another only at the lower ends of the flues in said sections, whereas the upper end of each section is independent of any communication with another section. By providing the bosses 14 on the opposite faces of the sect on t e a semblage of the sections in spaced relation with one another so as to passes directly u wardly into the ascendmg flue 6 of eac section and then downwardly through the descending flue of each section, the products of combustion passing through the communicatin passage 19, which passa is formed by t e o nmgs 18.

I preferab y connect an outlet ue 21 with the lower ends of the descending flues of the two center sections 4 as shown particularly in Figs 2 and 3 of the drawings, said flue 21 being disposed entirely outs1de of the sections to'which it is connected. Doing so overcomes reheating. Preferably, the flue 21 is of rectilinear outline havmg a horizontal intake'passage 22 at its lower end rovided b a right-angular extension 23 o the flue. he extension 23 is extended into openings 24 cut in the two center sections of the radiator and the passage 22 thus communicates with the pasage 19 and lower ends of the descending flues 7 of said sections. The upper side 23 of the extension 23 is lon r than the lower side and extends into t e descending flues 7 so as to act as a baffle'to revent too rapid a circulation through t e flues, said side 23' particularly blocking the descending flues center of the center sections. The upper end of the flue 21 is closed by a wall 25 and a horizontal outlet opening 26 communicatingwith an internal screw threaded boss 27 on the outside of the flue is provided in the back wall of said flue. A partition wall 28 isiprovided in the flue 21 so as to form a mam outlet flue passage 29 and a back draft outlet passage 30 extended vertically and parallel to one another. The partitlon 28 terminates below the outlet opening 26. A

baflle plate 31 is provided at the upper end of the passage 29 and extends outwardly from the rear wall of the flue 21, horizontally and at a point below the lower ed e of the opening 26, terminating forward y at a point spaced from the upper end of the partition 28. The flue 21 is provided with a transverse outlet port 32 WlllCh communicates with the atmosphere. In case of back draft or sluggish flue, the products of combustion in passing back into the flue 21 will be prevented by the baffle 31 from enweave with one another at t said sections having 1. A heater embodying in its con-' struction identically constructed heater-sections'each of which comprisesan ascendingflue and a descendin flue communicating eir upper ends only, openings in opposite sides at their lower .ends registering and communicating with the correspondin flues of said sections at the lower ends 0 said flues, a burner extending through the o enin wlth one another, and an outlet flue located which communicate the ascending ues outside of the sections and having its lower end only extended directly into the descending flues of certain sections' 2. A gas heater. embodying in its construction a plurality of heater sections, aburner in said sections, an outlet flue mounted outside of said sections and having its lower end in communication with certain of the heater sections, said outlet flue comprising a main outlet flue and having a horizontally disposed outlet opening at its upper end, a bafile plate extending above said main outlet flue and below said outlet opening, said flue having a transverse outlet opening at a point intermediate of its ends, and a partition in said flue providin a back draft passage communicating witfi sald outlet openings, said partition terminating at its upper end below said baflle.

3. A gas heater embodying in its construction a plurality of heater sections, a burner in said sections, an outlet flue mounted outside said sections, and having a horizontally disposed intake opening communicating with certain of said heater sections, said flue having a horizontally disposed outlet 0 ening adjacent to its upper end and a slmi ar outlet adjacent to its lower end, which latter outlet communicates with the atmosphere, a baflle in said flue extended part-way across the passage therethrough at a point below said first-named horizontal opemng, and a partition in said flue provid- LEGENDRE CINQ-MARS. 

